Qhy5

[Thom]

So I've picked up a mono QHY5 to take my imaging to the (hopefully) next level. I'm concentrating on lunar and planetary for the time being.

Does anyone know if I need to add an IR Cut (or Pass) filter to this camera?

(RGB filters will follow sometime next year.)

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[JamesF]

I think it would make sense to have an IR cut filter.  I think some posters here do use an IR pass filter for lunar imaging too, but I've never tried it myself.

James

[Jannis]

You'll need at least an IR block filter for it, yes. Otherwise you'll get a blurry image as the IR data does not have the same focus point.

Optionally you can use an IR-pass filter instead to sharpen the image even more in poor seeing conditions.

Personally i use an 742 IR-pass filter for lunar imaging, but i've only used it on my qhy5l-II mono camera though, i don't know wich model you have?

[Thom]

Thanks Jannis. I was wondering why my images were fuzzy but that explains it. Will invest in a filter soon as.

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